Truck side frame



7 G. A. ANDERSON TRUCK SIDE FRAME Filed Oct. 17. 1922 April 5 Patented Apr. 1927-. i

UNIT-ED sin I'ES-PIATENT OFFICE.

answer A. mnnnson, or BALTIMORE, mifmnn, ASSIGNOR, BY time Assummnms, TO THE smmaron COMPANY, A CORPORATION or irmnmn.

My invention, rel'atesto side frames for car trucks and has been primarily designed to provide a construction which. is both strong and stiff but comparatively light in weight and in which costs incident to manufacture and maintenance are reduced to a minimum.

The invention, generally stated,.resides in forming a car truck side frame from .a hol- -low metal member which isexpanded to'. provide an inner wall and an outer wall arranged in spaced relation, and further cut and shaped to provide corresponding side frame. parts including truck column portions, top arch bar portions, bottom arch bar portions, and pedestal tie bar portions. Particularly stated, my invention involves the production of a car truck side frame from a tubular member of wrought metal, said member being shaped to provide corresponding side frame sections,which are integrally united at both the top andjbottom of the side frame, thereby providing a strong, durable and inexpensive construction requiring no rivets or welds. Another object is to provide a metallic car truck side frame from a tubular member, the top and bottom portions of which are relatively maintained parallel throughout the length of the side frame and the intermediate portions of which are cut and shaped to form truck column portions, top arch bar portions, bottom arch bar portions, and bar portions, said top arch bar portions-being united with the pedestal tie onnecting -members inteygrally intersecting the bottom arch bar portions. thereby providing a construction which is greatly strengthened and reinforced at the critical points of the. side 7 frame.

pedestal tie bar portions by c The invention journal also has for an object the production of a car vtruclr side frame in which the respective end portions thereof are arranged to conveniently: receive the boxes, said journal, boxes having portions adapted to be. detachably connected to the spaced endportions of the side frame.

A still further object of the invention is to provide a comparatively simple construction of pivot connection for the spring plank in which the pivot stud is cast integral with the spring plank seatrcasting, andthe open-v ingadapted to receive-said stud is for iied in the inwardly extending stiifening flanges 'rnncx SIDE ram.

Application filed October 17, 1922. Serial No. 595,058.

ing.

to an axis of side frame portions.

hereinafter appear.

claims stei' opening.

s The invention further consists in the' method of manufacturing a car truekside frame by forming the same from a hollow tubular member which is expanded, cut and shaped to provide corresponding side frame portions, sa d side frame portions being in tegrallypnited at both the top andbottom of the SldQ frame and being provided with inwardly extending stiffening flanges relatively spaced from each other with respect symmetry passing between the The invention further consists in the particnlar arrangement and combination of the parts and details of construction, all as will In the drawings illustrating the invention, the scope whereof is pointed. out in v the sectional view shown diaadjacent the lower edge of the bolster open- 4 Figure 1 is a view in side elevation of a car truck side frame embodying the invention and disclosing in combination tlierewithan improved construction of journal box, the wheels of the par truck being grammatically in dotteddihes. Figure 2 IS an end view of the side.frame and our'nal box connected thereto.

Figu re 3 is a vertical transverse sectional view on the line 33 of Figure 1, viewed'in the direction of the arrows. r I

Figure 4 is a detail view of the pivot stud I open ng provided in the inwardly extending flanges bordering tlielower edged the bol- F gure is a detail vertical transverse A sect onal view on the line 5-5 of Figure 1. Figure 6 IS a detail vertical transverse sectional view on the line 6-6 of Figure "1. I F gure 7 is a detail cross on the line 7-7 of.Figure 1.

Referring to the drawings in which cor.- responding reference characters designate: similar parts in the several views, my improved s ide frame includes an outer wall and an 11111 81 wall formed from a tubular member suitably pressed to space the respective side walls, as shown, and integrally uniting the same along parallel lines at the top and bottom of the side frame; The top and bottom portions of the side frame are preferably slightly crowned, as shown. Each side wall is provided with truck column portions 1, top arch bar or compression por 3, and pedestal tie bar portions 4.- Each side wall is also provided with connecting or strut portions '5 which unite the top arch bar portlons with the pedestal tie bar portions, said connecting or strut portions 5 being adapted to integrallyintersect the bottom arch bar portions 3, as clearly shown in Figure 1.

The top of the side frame 'is preferably formed on a straight line, the lower ed es of the top arch bar portions being provided with inwardly extending flanges 6. Inwardly projecting stiffening flanges 7 are also provided on the lower edges of the top arch bar portions between the truck column portions, said flanges being relatively wide and closely spaced, as shown in Figure 5.

The stiffening flanges 7 are continued downwardly and merge into inwardly extending stiffening flanges 8 provided on the truckcolumn portions adjacent the bolster opening. The flanges 8 are preferably continued across the lower edge of the bolster openlng and provide the spring plank'seat portion of the sidefi'ame. The numeral 9 indicates the flanges providing the spring plank seat portion, said flanges being provided with recessed portions arranged to form a pivot opening 10 intermediate the truck columns. The edges of the flanges 9 adjacent the opening 10 are preferably welded, as indicated at 11, in Figure 4,said welds servin to firmly unite the flanges in whlch the plvot opening is provided.

The spring plank seat casting 12 is pro-- vided with'a pivot stud 13 integrally formed therewith, said pivot stud belng adapted to project into the opening 10, as shown in Figure 6. Rivets 14 connect the :spr ng plank 15 to the spring plank seat castmg 12. The foregoing construction prov des an altogether inexpensive and durable pivot or swivel connection for the-spring plank.

The bottom arch bar portions 3 are each provided with inwardly extending stiffeni ng flanges 16 along the upper edges therepf, and similar flanges 17. arranged along the. lower edges of said bottom arch bar portions. The flanges 17 are preferably pro.- longed across the top of the journal boxes, as indicated at 18, said flanges being sultably spaced to provide for the reception of portions of the journal boxes. The stiffening flanges 16 and 17 of the bottom arch bar portions are adapted to be merged inter-' mediate their ends into inwardly extending stiffening flanges -19 and 20, respectively. The flanges 19 and 20 are provided on the connecting or strut portions 5 of the side walls, the flanges 19 being provided along the upper edges of the strut portions, and. the flanges 20 being arranged along I thelower edgespf said strut portions. The in-' wardly extending stiffening" flanges of both the arch bar portions and the strut portions are adapted to merge into each other at the intersection of the strut portions with the bottom arch bar portions. The upper flanges 19 of the'strut portions are longed beneath the journal oxes, as indicated by the numeral 21, said flanges being merged intothe pedestal tie bar portions and suitably spaced to receive portions of the journal box.

The pedestal tie bar portions 4 are provided along their upper edges with inwardly extending stifi'cning flanges 22, said flanges forming continuatlons of the bottom arch bar flanges 17' and strut flanges-20, said flanges 17, 20 and 22 forming a continuous border for the triangular opening formed thereby. The triangular opening at the top of the side frame is similarly bordered by the continuous flanges 6,16 and 19. The

rear edges of the truck column portions 1 are provided with inwardl extending stiffening flanges 23, said anges being angular] disposed with relation to the truck column anges 8 and adapted to merge with the stiffening flanges 16, of the bottom arch bar portions and the stiffening flanges pro vided on the connecting or strut portions 5. The flanges 16, 20 and 23 border and surround the substantially triangular opening f ornied by the respective truck column portions, bottom arch bar portionsand strut portions. The angular disposition of the flanges 23 permits the lower portionsof the truck columns to be relatively wide, the

cross sectional area of the metal at the junctions of the truck column portions, bottom arch bar portions, and pedestal tie bar portions being greatly increased to provide maximum strength values at'these critical points or junctions of the side frame. In addition, the cross sectional areas of the pedestal tie bar portions are also materially increased thereby providing a. strong longitudinal portion of the side frame extending beneath the bolster opening and supporting the journal boxes. The interpositioning of the strut portions 5 between the top arch bar portions. at thejunctions of the truck column portions therewith andthe pedestal tie bar portions adjacent 'the journal boxes, also serve to greatly strengthen theside frame and reduce possibilities of failures thereof at ornear these points to a minimum.

The respective end portions of the side frame are extended in parallel relation, journal boxes 24 being detachably connected between the parallel end. portions. Each journal box is provided with an upper projection 25 and a lower projection 26, the former of said projections being adapted to extend between the prolonged and spaced flanges indicated by the numeral 18 at the top of the journal box and the latter of said projections being arranged to fit bereferably prolot llu

tween the prolonged and spaced flanges indicated by' the numeral. 21 extending be neath the journal box". Each projection extending from the journal box is provided with an opening, said opening being suitably alined transversely of the frame wlth openings in the side walls thereof, a pin'27 being adapted to pass through said alined open- 'mgs and securely attach the journal box to the side frame. The pin is preferably provided with ahead 28 and the opposite end of said pin is'designed to receive the cotter 29. The projections 25 and 26 are arranged 1n termediate the front and rear portions of the journal b0xes, said projectionsbeing of a width which" can be easily inserted between the inwardly extending stiffening flanges projecting from the side walls above and, below the journal boxes. The foregoing construction permits the journal boxes to be easily and rapidly attached orremoved fromthe side frame.

' The side walls may be tied and spaced at points throughout the side frame, my present construction providing for the insertlon of the tie means throughout the length of the connecting or strut portions 5. Rivets 30 serve to firmly unite the side wallportions, and sleeves 31 interposed between the; side walls serve to maintain the same in proper spacedrelation, A plurality of tie and spacing means may be provided, asshown, said means adding to the rigidity of the strut connection and otherwise materially resisting the strains to-which adjacent portions of the side frames are sub ected under service conditions. a

' The method of manufacturing my improved car truck side frame consists in shaping a hollow member, preferably of tubular formation, and providing by saad shaping a plurality of corresponding side frame portions. My improved method also involves 7 the expandin cutting and bending of the tubular mem er to provide corresponding side frameportions, all of' WlllC-ll. are in tegrally united. I

It will be noted that a. truck frame embodying my invention not only has the merit of being constructed of light and reliable material but its parts are so ,formed and combined that the points subjectedto the great strains in service are rendered exceedingly strong, It will also be perceived that the construction makes it possible to avoid the use'of rivets which would be subjected to shearing strains'. 7

Iclaim:. 1. A car truck side frame involving spaced side walls integrally connected along a the upper and lower marginal edges thereof.

2. A car truck'side frame involving an iritegral hollow metal member shapedto form aninner wall and an outer wall arranged in spaced relation, each of said walls having a plurality oftruck column portions, top arch bar portions, bottom arch bar portions, and pedestal tie bar portions. f

3. A car truck side frame formed from a unitary hollow metal member shaped to form inner and outer side walls each" of" which is provided with a bolster opening, and inwardly extending stiffening flanges adapted to'border said bolster opening.

4. A car truck side frame involving a hollow metal member expanded to provide parallel top andbottom portions of the side frame and shaped to providespaced inner portions, ;top arch bar portions, bottom arch oar portions, pedestal tie bar portions, and means including a member connecting said top arch bar portions and pedestal tie bar portions, said member being formed integral with theside walls and designed to intersect the bottomarch bar. portions. 7. A car truck side frame involving a hollow metal member shaped to provide spaced inner and outer side walls, each of said walls being provided with truck column portions, top arch bar portions, bottom arch ar portions, and pedestal tie bar portions;

and connecting strut port-ions adapted to -1ntegrally unite the top arch bar portions, bottom arch bar portions, and pedestal tie bar portionsl 8. A car truck side frame involving a hollow metal member shaped to provide spaced inner and outer sidewalls, each of said walls being provided witlrtruck column portions.

top arch bar ortions, bottom arch bar portions, and pe estal tie bar portions; and re.

inforcing strut portions adapted to unite the top arch bar bar portions.

9. A car truck side frame involving a hollow. metal membershaped to provide spaced inner and outer side walls, each of said walls being provided with truck column port-iom, top arch bar portions, bottom arch bar portions, and pedestal tie bar portions; and

portions with the pedestal tie reinforcing strut portions adapted to unite the top arch bar portions, bottom arch bar portions, and pedestal tie bar portions.

10. A car truck side frame involving a hollow metal member shaped to provide spacedinner and outer side walls, eaclrof' said wallsbeing provided with tr'uck. column ortions,.top arch bar portions, bottom arch ajr portions, pedestaltie. bar portions,'

. strut portions being provided with inwardly extending stiffening flanges adapted to be merged into the pedestal tie bar portions and prolonged to extend beneath the ournal boxes;

12. A car tguck side fi'aine'involving a hollow etal member shaped to provide spaced inner and outer side walls, each of saidwalls being provided with truck column portions, top arch bar POItlOIlS, bottom arch bar portions, pedestal tie bar portions,

and reinforcing strut portions; and means including a plurality of tie members uniting the side walls throughout the length-of said reinforcing strut portions.

' 13. A car' truck side frame mvolving a hollow metal member shaped to provide arrang spaced inner and outer side. walls, each of said walls being provided with truck column portions, top arch bar portions, bottom arch bar portions, pedestal tie bar portions, and reinforcing strut portions; and tying and spacing means uniting the s de walls, said tying and spacing means being ed throughout the length of-said reinforcing strut portions.

14. A car truck side frame involving a hollow tubular member shaped to provide inner and outer'side walls arranged in spaced relation, each of said sidewalls having a plurality of truck column portions, a' plurality of,top arch bar port ons, a plurality of bottom arch bar port ons, a plurality of pedestal tie bar portions, and a plurality of reinforcing strut portions, said reinforcing strut portions being formed integrally with the bottom arch bar portione and having their respective ends united with the top arch bar portions atthe top of the ,truck column portions and the pedestal tie bar portions adjacent the journal boxes. j

15. A car truck side frame involving a hollow tubular member shaped to provide inner and outer side walls arranged in spaced relation, each of said side walls having a plurality of truck column portions, a

' plurality of top arch bartportions, a. plurality of bottom arch bar portions, a plu rality of pedestal tie bar portions, and a plurality of reinforcing strut port1ons,.sa1d reinforcing strut port-ions being integrally united with'th top arch bar portions at the top of the truck column portions and also integrally-united'with the pedestal tie bar portions adjacent the journal boxes.

16. A car truck side frame involving a hollow tubularmember shaped to provide inner and outer side walls arranged in' spaced relation, each of said side walls havtions and having their respective end portrons integrally united with the top arch bar portions at the top of the truck column portions, and with the pedestal tie bar portions adjacent the journal boxes.

17. In combination, a car truck side frame having inner and outer side walls having end portions arranged in spaced relation, journal boxes having portions adapted to extend between the side walls at the spaced ends of the side frame, and means detachably connccting said' journal boxes to the' side frame.

18. In combination, a car truck side frame having laterally opened spaced end portions, journal boxes provided with projections on the upper anl lower faces thereof adapted to be connected. to said spaced end portions, and pins adapted to pass through the end portions and said projections for connecting the journal boxes to the side frame.

19. In combination, a car truck side frame shaped to provide a plurality of bottom arch bar portions and pedestal tie bar portions, inwardly extending stiffening flanges provided on said portions, said flanges being adapted to be prolonged above and below the top and bottom of the journal boxes and arranged in spaced relation, and journal boxes having projections adapted to extend between the said prolonged flanges.

20. A pressed metal car truck side frame shaped to provide inner and outer side walls having a bolster opening, inwardly extending flanges adjacent the dower edge of said bolster opening, said-flanges being provided with cut away portions adapted to form an opening for the reception of the pivot stud of the spring plank.

21. A pressed metal car truck side frame shaped to provide inner and outer side walls having abolster opening, inwardly extend ing stiffening flanges provided adjacent the lower edge of said bolster opening, said flanges being cutaway and having opposite edge portions united to form a spring plank pivot stud openin j 22. The methof of manufacturing car truck sidev frames which consists in forming the same from a hollow tubular member, expanding portions of said member to provide parallel upper and lower edges, and cutting and shaping other parts to provide'corre- 'sponding side frame portions.

23. The method of manufacturing car ,the same from a hollow "integral member truck side frames which consists in forming the same from a hollow tubular member by egpanding portions of said member to form spaced side walls, and bending portions of said member to form stifl'ening'flanges for Said side walls. a l

24. The method of manufacturing 'car truck side frames which consists in forming thesame from a hollow member by expandm sponding side frame portions.

ing portions of said .member to prvide spaced side Walls, andcutting and shaping other parts of said member to provide corre- 25..The method of manufacturing car truck side frames which consists in forming open at both ends by expanding portions k thereof to form side walls, cutting the said f portions, and .trnck column portions; and

member to provide top arch bar portions, bottom arch bar portions, pedestal -tie bar bending stiffening flanges from the side wall rtions adjacent said enumerated side ame portions.

26. A truck side frame comprising a, hollow metal member shape'd to form truck sion portions, and diagonal bracing portions extending from near the tops of the truck 'column portions-downwardly and outwardly and connected with the tension portions.

28. A car truck side frame comprising. a sheet metal member elongated in cross section to form side walls, each ofjwhich is shaped to provide truck column portions, top arch bar portions, bottom arch barportion's, tie bar portions, and portions extending diagonally from points adjacent the junctions of the top arch bar portions and truck column portions outwardly and i downwardly portions.

In testimony whereof I a-flix my signature.

, GUSTAF A. ANDERSON.

andv uniting with the tie bar 

